Towards the midway point of the stairs I could hear a noise at first I wasn’t sure what it even was, a grunting noise and a slapping sound, then it ...it me, someone was getting fucked! From the last few steps of the stairs I could see into Mary’s room, she was on her bed, legs on Johns shoulders and he was thrusting away at her. I was devastated. I wanted to leave but I couldn’t turn away, watching Mary my crush, the girl I was going to ask out that night, squirming on the end of his cock just. Shit, I haven't changed with my sister in the room for years, definitely not since I started enjoying looking at her like I have this last week. Nice to get a free peak at those tits. When I win I will get even a better view."Shit there is no water in here to wet these with," exclaims Pam getting ready to head to the kitchen."Just lick it a little until it is wet enough and then apply it," I told her."Won't it stick to our tongues then?" she asks."Then lick it where you are going to apply it,". I shed my clothes as i watched Tom move her to the edge of our bed,him standing in front of her as she sat. She then pulled his pants down and as he stepped out of them she gently held his erect hard cock. She looked at it for a second then looked at me.Again she looked uncertain but i smiled to reassure her.I watched in awe as she licked her lips then opened her mouth and took first the round head then part of the shaft between her lips. Her cheek bulged in and back out as she slid him slowly. Elwyn and the dog slowly worked their way along going from building tobuilding, Elwyn regularly calling."Where are you sissy? You know you can't escape me you naughty girl."And then talking to the dog and whistling after it.Richie cowered in the corner behind the cupboard, praying they wouldn'tfind him, praying they'd give up. After a few minutes things seemed tobecome quieter and Richie looked out of the little peephole again, Elwynand the dog had worked their way right down to the bottom of.